本帖最后由 endgame 于 2022-11-7 19:29 编辑
Christian好,1、Burson认为加装风扇是 "纯甲类、大功率" 电路设计的必要条件。理论上会产生谐振,而加厚的机盖能很好地抑制谐振;
2、好问题。这篇采访能侧面说明厂家解释“MCPS比线电更有优势”:
Q3:我认为Burson的Max Current Power Supply (MCPS)电路非常有意思、目前只有Burson在做的一个创新之举。相比Playmate/Swing/Fun,它在C3R中的表现应该会更上一个台阶。如果一些潜在客户不赞同抛弃大型环形变压器的做法,你打算如何为这一先进的设计辩护?
Burson:大型变压器+线性电源的配置是我们从前设计的缺点,而不是优势。这种配置会导致阻抗过高,电流输送过于缓慢,所以才需要大的电力电容器来保证电流的平稳输送。而我们的MCPS没有阻抗,可以直接向功率晶体管输送电流。虽然单纯从数据上看,C3的输出与C2相同,但由于采用了MCPS,C3给人的感觉会更有力、更灵敏、也更准确。(翻译)
Q3. I think your Max Current Power Supply (MCPS) is a very interesting aspect that no one else adopted yet, the way it is implemented in C3R is on a much higher level compared to Playmate / Swing / Fun as it should be. If some of your potential customers will complain that it doesn’t house a big toroidal transformer inside how will you defend your clever design? Burson: The big transformers + linear power supply were weaknesses, not strengths of our previous designs. They resulted in very high impedance and very slow delivery of current which meant big power caps were needed to smooth out current delivery. Our MCPS has no impedance and delivers energy directly into the power transistors. On paper the C3 delivers the same output as the C2 but because of the MCPS, the C3 feels like a much more powerful, responsive and accurate amplifier.
这篇6moons - Timekeeper 3X GT测评,也有讨论 Burson 2012年发布的内置线电的功放“Timekeeper” ,与2022年的“Timekeeper 3X GT”,后者用的是MCPS电源+外置升频电源方案。
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